Matthew John Fischer, MD
NPI 1083000319ActiveIndividual· Anesthesiology, Pain Medicine· Appleton, WI
Anesthesiology, Pain Medicine (MD) with Thedacare, Incorporated, practicing in Appleton, Wisconsin. 274 Medicare patients in 2024, $86,293 paid; nearly all of their 362 Part D prescriptions were generic (99%). Si-Bone, Inc. was the largest of 7 companies reporting payments in 2025, $1,101 in all, mostly food and beverage. Lists Thedacare Medical Center - Berlin Inc and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1083000319 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 14, 2015 |
| Last updated in NPPES | Nov 13, 2024 |
| Certified by provider | Nov 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology, Pain Medicine Primary | 207LP2900X | 66250 | WI |
| Anesthesiology | 207L00000X | 66250 | WI |
| Anesthesiology, Pain Medicine | 207LP2900X | 036.148780 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Anesthesiology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 274 |
|---|---|
| Services billed | 2,982 across 75 procedure codes |
| Paid by Medicare | $86,293 |
Part D prescriptions in 2024
| Prescriptions (claims) | 362 · 393 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $3,511 |
| Generic share | 99% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- Thedacare, IncorporatedWaupaca, WI · 647 clinicians
Hospital affiliations
- Thedacare Medical Center - Berlin IncBerlin, WI
- Thedacare Medical Center - ShawanoShawano, WI
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Industry payments (Open Payments)
- 2025$1,101 · 18 payments from 7 companies
- 2024$11,333 · 50 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Si-Bone, Inc. | $293.20 | 2 |
| Medtronic, Inc. | $184.83 | 2 |
| Boston Scientific Corporation | $160.58 | 9 |
| Globus Medical, Inc. | $137.87 | 1 |
| Spr Therapeutics, Inc | $124.12 | 1 |
What the 2025 payments were for
- Food and Beverage$1,101 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Anesthesiology, Pain Medicine providers in Appleton
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